I have a couple of critiques, in case you're interested:
- The dark red shadows contrast more from the mid-red than any other shadow colour, I think it would look better to have a bit less contrast.
- The tables look flat because the shadows under them are angled in an odd way. We should see more of them. If you want them to be angled as-is, then we'd probably see parts of those shadows above the table-top.